基于单胞解析模型,建立一种从复合材料细观组分到宏观单向板的强度预报方法.根据连续介质力学和均匀化方法构建细一宏观关联矩阵,通过该关联矩阵将细观组分材料的弹性和损伤性能传递到宏观单向板中.考虑复合材料细观损伤状态,当纤维和基体满足各自强度准则时失效,并通过失效因子折算成刚度的衰减.在此基础上,结合有限元分析,实现复合材料单向板纵横向拉伸模拟,从而预报单向板的拉伸强度.结果表明:该方法预报的模量和强度与实验值基本一致,验证了该方法的有效性与高效性.
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